"A recent report by Stanford University researchers found that the majority of seaports around the world are unprepared for rising sea levels and increasingly violent storms; a majority of ports surveyed listed sea level rise and increasing extreme storms as some of their top concerns; only 6 percent of respondents said they have plans to build hurricane barriers in the next ten years, and less than 18 percent said they had plans to build dikes or other storm protection structures; to ease uncertainty among port authorities, researchers developed a computer model to provide cost estimates that take into account a port's specific location as well as the cost of labor, materials, and equipment for fortifying a structure against rising sea levels."